---
kind: "section"
citation: "14 C.F.R. § 1215.102"
title: "14"
number: "1215.102"
heading: "Definitions."
url: "https://uscodex.org/cfr/14/1215.102"
---

# §1215.102. Definitions.

- (a) **User.** Any non-U.S. Government representative or entity that enters into an agreement with NASA to use TDRSS services.
- (b) **TDRSS.** TDRSS, including Tracking and Data Relay Satellites (TDRS), WSC, GRGT, and the necessary TDRSS operational areas, interface devices, and NASA communication circuits that unify the above into a functioning system. It specifically excludes the user ground system/TDRSS interface.
- (c) **Bit stream.** The electronic signals acquired by TDRSS from the user craft or the user-generated input commands for transmission to the user craft.
- (d) **Scheduling service period.** One scheduled contact utilizing a single TDRS, whereby the user, by requesting service, is allotted a block of time for operations between the user satellite and TDRSS.

## Notes

### Amendments

[77 FR 6952, Feb. 10, 2012]

### Authority

Authority: Sec. 203, Pub. L. 85-568, 72 Stat. 429, as amended; 42 U.S.C. 2473.

### Source

Source: 48 FR 9845, Mar. 9, 1983, unless otherwise noted.

### Amendments

[77 FR 6952, Feb. 10, 2012]